DIFFERENTIAL ELECTROLYTIC POTENTIOMETRIC DETERMINATION OF CAFFEINE INNONAQUEOUS MEDIA

Authors
ABDENNABI AMS SULTAN SM
Citation
Ams. Abdennabi et Sm. Sultan, DIFFERENTIAL ELECTROLYTIC POTENTIOMETRIC DETERMINATION OF CAFFEINE INNONAQUEOUS MEDIA, Electroanalysis, 5(8), 1993, pp. 709-712
Citations number
19
Categorie Soggetti
Chemistry Analytical
Journal title
Electroanalysis → ACNP
ISSN journal
10400397
Volume
5
Issue
8
Year of publication
1993
Pages
709 - 712
Database
ISI
SICI code
1040-0397(1993)5:8<709:DEPDOC>2.0.ZU;2-M
Abstract
The application of direct current differential electrolytic potentiome try (dc DEP) to the titration of caffeine in acetic anhydride-toluene mixture has been investigated. A very stable low current source has be en constructed to polarize the antimony electrodes. The behavior of th ese electrodes during the titration of caffeine has been examined. Caf feine in commercial samples like tea, Pepsi as a beverage and Prontopy rin, a proprietary drug, was extracted in chloroform and determined by dc DEP.